body {
	display: flex;
	flex-direction: column;
	//主体
	main {
		// height: 100px;
		flex-grow: 1;
		overflow-y: auto;
	}
	//底部样式
	.tabbar {
		height: 60px;
		background-color: #fff;
		box-shadow: 0px 4px 15px 2px #ccc;
		display: flex;
		text-align: center;
		justify-content: space-around;
		align-items: center;
		i {
			display: block;
			font-size: 30px;
		}
		a {
			text-align: center;
			color: #ccc;
			&.active {
				color: #2090d6;
			}
		}
	}
}
